19980421007359A

Accident · Destroyed

FAA accident report · Cessna 150F · Muskogee, OK · April 21, 1998

Date
April 21, 1998 · 15:50 local
Place
Muskogee, OK
Airport
Hatbox Field Airport
Phase of flight
Touch And Go Landing
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N8720G
NTSB investigation
NTSBFTW98FA189
Reported as
Cessna 150F
Reported engine
Continental O200A
People aboard
2
Fatal injuries
2
Pilot’s flight hours
5,273 total64 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(.4) The flight instructor lost control of the airplane while on initial climb during an instructional flight. The airplane was observed by a witness to be performing touch and go landings on runway 35. While on the initial climb portion of the third takeoff, the witness observed the airplane bank to the left as the nose dropped towards the ground. The airplane impacted on the airfield, in the infield grass area. Examination of the wreckage site revealed that the airplane impacted the ground on a measured heading of 185 degrees in a left turn, in a nose low attitude. The wing flap actuator was found in the fully extended position. The winds at the time of the accident were reported from 350 degrees at 11 knots, gusting to 17 knots. The owner's manual for the airplane states that flap deflections of 30 and 40 degrees are not recommended at any time for takeoff. Examination of the airframe and a teardown examination of the engine did not reveal any anomalies that would have prevented normal flight operations. (-23) on April 21, 1998, at 1545 CDT, an instructor pilot and a private pilot were flying training flights in a Cessna, CE-150-F, N8270G, practicing l andings at Hatbox airport (hax), Muskogee, OK. Witnesses said the aircraft had made several touch and go operations from south to north on runway 35. One witness said he saw the airplane make a steep left bank after takeoff. He said his attention was diverted from the plane for a moment, and when he looked again, it was out of sight, and there were flames and black smoke. He thought the plane had crashed, and headed in its direction on foot. He said he flagged down a driver, who went to call 911. The then proceeded to the crash site where the aircraft was engulfed in flames. Inspection of the scene determined the left wing impacted first; then the engine and propeller impacted. The aircraft came to rest about 30 ft. from the initial impact. All wreckage was in an area about 70 ft. in diameter. The damage to the propeller shows there was no power being developed by the engine upon impact. There has been no determination of the engine's condition. It was overhauled on April 15, 1998, seven days before. The NTSB investigator is making arrangements for the engine to be disassembled, and or tested by Continental engine manufacturers in Alabama. We will keep abreast of the NTSB findings.

As the FAA filed it

(.4) THE FLIGHT INSTRUCTOR LOST CONTROL OF THE AIRPLANE WHILE ON INITIAL CLIMB DURING AN INSTRUCTIONAL FLIGHT. THE AIRPLANE WAS OBSERVED BY A WITNESS TO BE PERFORMING TOUCH AND GO LANDINGS ON RUNWAY 35. WHILE ON THE INITIAL CLIMB PORTION OF THE THIRD TAKEOFF, THE WITNESS OBSERVED THE AIRPLANE BANK TO THE LEFT AS THE NOSE DROPPED TOWARDS THE GROUND. THE AIRPLANE IMPACTED ON THE AIRFIELD, IN THE INFIELD GRASS AREA. EXAMINATION OF THE WRECKAGE SITE REVEALED THAT THE AIRPLANE IMPACTED THE GROUND ON A MEASURED HEADING OF 185 DEGREES IN A LEFT TURN, IN A NOSE LOW ATTITUDE. THE WING FLAP ACTUATOR WAS FOUND IN THE FULLY EXTENDED POSITION. THE WINDS AT THE TIME OF THE ACCIDENT WERE REPORTED FROM 350 DEGREES AT 11 KNOTS, GUSTING TO 17 KNOTS. THE OWNER'S MANUAL FOR THE AIRPLANE STATES THAT FLAP DEFLECTIONS OF 30 AND 40 DEGREES ARE NOT RECOMMENDED AT ANY TIME FOR TAKEOFF. EXAMINATION OF THE AIRFRAME AND A TEARDOWN EXAMINATION OF THE ENGINE DID NOT REVEAL ANY ANOMALIES THAT WOULD HAVE PREVENTED NORMAL FLIGHT OPERATIONS. (-23) ON APRIL 21, 1998, AT 1545 CDT, AN INSTRUCTOR PILOT AND A PRIVATE PILOT WERE FLYING TRAINING FLIGHTS IN A CESSNA, CE-150-F, N8270G, PRACTICING L ANDINGS AT HATBOX AIRPORT (HAX), MUSKOGEE, OK. WITNESSES SAID THE AIRCRAFT HAD MADE SEVERAL TOUCH AND GO OPERATIONS FROM SOUTH TO NORTH ON RUNWAY 35. ONE WITNESS SAID HE SAW THE AIRPLANE MAKE A STEEP LEFT BANK AFTER TAKEOFF. HE SAID HIS ATTENTION WAS DIVERTED FROM THE PLANE FOR A MOMENT, AND WHEN HE LOOKED AGAIN, IT WAS OUT OF SIGHT, AND THERE WERE FLAMES AND BLACK SMOKE. HE THOUGHT THE PLANE HAD CRASHED, AND HEADED IN ITS DIRECTION ON FOOT. HE SAID HE FLAGGED DOWN A DRIVER, WHO WENT TO CALL 911. THE THEN PROCEEDED TO THE CRASH SITE WHERE THE AIRCRAFT WAS ENGULFED IN FLAMES. INSPECTION OF THE SCENE DETERMINED THE LEFT WING IMPACTED FIRST; THEN THE ENGINE AND PROPELLER IMPACTED. THE AIRCRAFT CAME TO REST ABOUT 30 FT. FROM THE INITIAL IMPACT. ALL WRECKAGE WAS IN AN AREA ABOUT 70 FT. IN DIAMETER. THE DAMAGE TO THE PROPELLER SHOWS THERE WAS NO POWER BEING DEVELOPED BY THE ENGINE UPON IMPACT. THERE HAS BEEN NO DETERMINATION OF THE ENGINE'S CONDITION. IT WAS OVERHAULED ON APRIL 15, 1998, SEVEN DAYS BEFORE. THE NTSB INVESTIGATOR IS MAKING ARRANGEMENTS FOR THE ENGINE TO BE DISASSEMBLED, AND OR TESTED BY CONTINENTAL ENGINE MANUFACTURERS IN ALABAMA. WE WILL KEEP ABREAST OF THE NTSB FINDINGS.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.